Closure



Aug. 11, 1936. T, F, EVANS 2,050,691

CLOSURE Filed March 9, 1935 iff/32s 2?/ 25 22 /7 Patented Aug. 11A, 1936 CLOSURE Thomas Francis Evans, Ainsdale.; Southport.

England Application March 9, 1935, Serial No. 10,242

- In Great Britain March 9, 1934 v 3 Claims. (Cl. B21-60) This invention consists in closures which when Fig. 1 is a. plan of a container with a closure declosed give tight closure against extrusion, leak= vice of one form provided according to the inage or escape of the contents from containers for vention shown in the closed position. Fig. 2 is pastes, ointments, greases and liquids and are apa side elevation of the upper part of the conplicable also to containers for powders andl while tainer with the body member of the closure degiving a tight closure for any container on which vice shown in Fig. 1. Fig. 3 is aplan of theparts they may be used. are easily opened for extrushown in Fig. 2. Fig. 4 is a side elevation of the sion or discharge of the contents of the conclosure cap shown in.Fig. 1. Fig. 5 is a view tainers. While presenting the said advantages, showing the inner face of the closure cap shown I closures provided according to the invention can, in Fig. 4 before being applied on the body mem- 10 similarly to some closure devices heretofore prober of the container.) Fig. 6 is a section through vided. be made with smooth or even external surpart of the container and a closure device shown faces so that material expelled or discharged from in Fig. l, showing the closure device in the open the containers can be easily applied to brushes position, the sections through the body member or wiped on in any other way, as for example for and closure cap being indicated by the lines S-e 15 with which they co-operate and so cork or other device shown in Fig.l 7, the section being taken use or in the preparation of containers for packof Fig. 3 and Fig. 5 respectively. Fig. 7 is a plan ing after lling. Further, in the closures proof a container and closure device showing a clovided according to the invention, the movable sure device with another form of cap. Fig. 8 is a parts are not easily removable from the parts section through part of the container and closure packings, if any be used, are prevented from on the plane indicated by the line ofFig. 7. escaping. Fig."9 is a section through a bow member and In a closure provided according to the invenpart of a container and a closure device showing tion for a container of any kind, there are proa closure device with a cap of still another form.

I vided a. body member and a closure cap turnable Fig. l0 is a section through a closure device 25 upon and axially movable within limits in relation formed with a stopper for application in an 'orice to a circular part of the body member, which of a container. Fig. 1l shows a closure device in are provided with spiral valve faces, counter parts which the body member and closure cap are each the one of the other, to work against one another, formed with a plurality of outlet orices. Figs.

and each oi uniform inclination along the spiral 12 and 13 are developments of the spiral valve 30 and extending in not more than one turn and faces of thebody members and closure caps of forming a stop by oneA end and in the spiral valve the'closure devices shown in Figs. l, 2, 3, 6, 7, 8, 9 faces are provided outlets to be in communicaand 10. l tion when the stop on the closure cap is against A closure device provided according to this inthe stop on the body member and taken out of vention may be provided on a container oi any 35 communication by the closure cap being turned form or may be formed as a separate ldevice for relatively to the body member so that the one stop application in or on a container. By way of exis moved away from the other and are engaged ample, Figs. 1, 2.' 3, 6, .7, 8 and 9 of the drawing the one with the other so that turning of the illustrate closure devices with the body formed 40 closure cap relatively to the body member will on collapsible tubes and Fig. 10 shows s. closure o cause the spiral valve face oi the closure cap to device formed as a stopper separate from andv slideand to be tightened against the spiral valve applicable to acontainer, as for instance abottle. face oi the body member. The spiral valve face In the closure device illustrated by Figs. l, 2,V or the body member is formed as an end -face of 3, 4, 5.and 6, the body member Mis provided .as

a. circular part formed with one oriiice or more a circular part around which the closure cap 'i5 extending through it from a placeof communiis applied. The end face of the circular part of cation with the interior of the container and the body member it is formed with a spiral valve opening as the outlet in the spiral valve face. l face lextendingin one turnaround and length- The spiral valve face of the closure cap may wise of the center line of the body member it be provided by the material of the closure cap and of equal inclination .throughout and by one itself or by apiece oi' compressible or other maf end forming a stop Il. An outlet passage le 50 terial inserted or secured in-it. extending through the circular member it for .Illustrative embodiments of closure devices procommunication with the interior cavity in the vided according to this invention are represented Y container I9 is formed so as to open in the spiral 55intheaccomdrawing. Inthisdrawing, faccio. Thecircularpartofthememberliis like it forms a stop 22 `from the stop I1.

`2li formed around the bodymember I4 adjacent to the cylindrical part. The closure cap I5 is formed with a spiral valve face 2I -whichis a counterpart of and made to work against the valve lface I6 formed in the body member Il and at one end and is formed with an opening 23 in position to uncoverl the outer opening of the outlet passage 'I8 in the body member I4 when the stops I1` and 2'2 are together and to-be taken out of communication by the cap being turned to move the stop 22 away The skirt or tubular part 24 of the cap I5 which is shown in Fig.` 4 in the form prepared for, but before, application to the body member I4 is spun or pressed into the groove 20 in the body member Il while the stop 22 is against the stop I1 so that the turned inor spun part shall form a rib 25 tohold the closure cap I5 in connexion with the body member I4 so that it can not easily be removed therefrom and to hold the spiral valve face2I of the cap I5 so close to the spiral valve face I6 that while the cap I5 can be tlu'ned to move the stop 22 away from the stop I1', turning of the cap I5 a little more than sufficient to remove the opening 23 from the opening I8 shall suillce to cause the spiral valve face 2l to be pressed 'firmly against the spiral valve face I6. Thus in the turning -of the cap I5 from the position in which the opening 23 in the cap I5 leaves uncovered the opening of the outlet passage I8 in the body member Il to a position in which the valve face 2i of the cap I5 closes the outlet passage I8,in the body member I4, the valve face 2I is made to slide upon the valve face I6 and is pressed tightly against it so that there is ensured a tight closure which will prevent leakage of grease, cream or liquid or any other contents of the container provided with the closure device.

Figs. 12 and 13 show developments, in linear form and in section, of the valve faces I6, 2i, Fig. 12 showing the position in which the outlet I8 in the valve face I8 is open and Fig. lshowing the outlet I8 closed by the valve face 2l. Figs. 1, 4, 5 and show the opening 23 in the cap I5 chamfered or made to widen outwards so as to facilitate clean wiping or brushing, as for instance in the use of a tooth brushwith the container.

Figs. 7 and 8 show a construction generally similar to that shown in Figs.l 1, '2, 3, 4, 5 and 6 but with a larger outlet hole 2B.

Fig. 9 shows a construction in which the body member I of the closure device 4is formed gen.

erally as that shown in Figs. 1, 2, 3, 6, 'I and 8, but the closure cap is furnished with a spiral valve face 21 on a piece of compressible or other i material 28 inserted in the cap 29 and secured therein in any `manner appropriate so as to be prevented from being turned relatively to the cap .29 and by way of example Fig. 9 shows the 4material 2B secured in position by indentations annular plug 3l shown as'tapering and secured in position between the flange' |42 and an outwardly spun or expanded portion |43 of the end f of the tube III.

'I'he annular plug 3I may be.of any material appropriate, for example cork or india rubber.

Figs. l, 2, 3, 4,15, 8, Figs. 'l and 8, Fig. 9 and Fig. l0 show in each case a singleoutlet orifice in 5 the body member of the closure device and a single opening in the cap used with it, but more than onehole may be formed in the body member or the cap of a closure device provided ac-I cording to this invention, as for example as in lil Fig. ll which shows a body member I I,formed with three outlet orifices IBI and a closure cap i5 formed with three holes 23|, the closure 'device being shown in the closed position in which the orifices I8I of the body member il are closed l5 by imperforate portions of the spiral valve face of the closure cap I5.

. Obviously the outlet openings in the body mem-l ber and the closure cap may be formed in any position which allow of the outlet opening or openings in the body member being opened and closed in movement of the spiral valve face of the cap upon the spiral valve face of the body member.

In radial section the spiral valve faces shown '2 5 in the accompanying another.

Any appropriate material lmay be used in the formation of the body members and closure caps of closure devices according to this invention in correspondence with the purposes for which the closure devices may be intended; the closure caps 35 may be made of any external form desirable and diiferent means may be employed in different cases for connecting the closure caps with the body members of the closure devices and making them turnable thereon. 4o

What I do claim as my invention. and desire to secure by Letters Patent isz` Y l. In a closure for a container, a body member furnished with a circular part which at one end face is formed with a spiral valve face of uniform 45 inclination along the spiral, said spiral extending in not more than one turn and forming a stop by the step at one end, said circular part being alsol furnished with an outlet formed through it to open at on'e end in the container 50 and at the other in the spiral valve face; and a closure cap turnably and axially movable within limits in engagement with said circular part, said cap being furnished with a spiral valve face a counterpart of that on said circular part and 53 of uniform inclination along the spiral, said inclination extending in not more than one turn and forming a stop by the step at one end and having on outlet in position to communicate with that in said circular part when one stop is against 00 `the other, whereby turning of the closure cap to take one stop away from the other will close the outlet in said circular part and tighten the one valveface against the other.

2. In a closure for a container, a body member having a circular part which at one end face I# formed with a spiral valve face of Auniform. inclination along the spiral and extending in not morev thanone turn and forming a stop by .the step at one end, said circular part being furnished 79 with an outlet formed through it to open at one end into the container and at the other end. on the spiral valve face; anda closure 'cap turnable and axially movable within limits in anneement with said circular part and having a spiral valve face a counterpart of that on said circular pmt and of uniform inclination along the spiral, said spiral extending in not more than one turn and forming a stop by the step at one end, said valve face having an outlet in position to communicate with that in said circular part when one stop is against the other, whereby turning of the closure cap to take one stop away from the other will close the outlet in said circular part and tighten the one valve face against the other.

3. In a closure for a container, a body member furnished with a circular part which at one end face is formed with a spiral valve face o1' uniform inclination along the spiral, said spiral extending in not more than one turn and forming a stop by the step at one end, said circular part being also furnished with an outlet formed through it to open at one end into the container and at the other end, on the spiral valve face. and a closure'cap turnable and axially movable within limits in engagement with said circular part, said cap being furnished with a piece of inserted material formed with a spiral valve face a counterpart of that on said circular part, said spiral being of uniform inclination along' the spiral and extending in not more than one turn and forming a stop by the step at one end,'said inserted material being formed with any outlet into said 10 closure cap; and other inserted material in position to communicate with that in said circular part when one stop is against the other, whereby turning of the closure cap to take one stop away from the other will close the outlet in said circu- 15 lar part and tighten the one valve face against the other.

THCMAS FRANCIS EVANS. 

